【Large Transmission Range】The hygrometer thermometer is connected to the device via a radio transmitter that offers high radio signal penetration (frequency 433 MHz). The thermometer has a long transmission range (30–100 m/98–328 ft). In open areas, the signal can be received quickly and easily. Time in the transmission area. 【Multifunction】Indoor and outdoor thermometer for healthy living, measures temperature and humidity values indoors and outdoors. Used primarily for measuring temperature and humidity in homes, offices, workshops, etc. 【Accurate Reading & Large LCD Screen】: Large LCD screen for easy and clear display. Indoor temperature (0-60°C/32-140°F) / outdoor temperature (-40°C-60°C/-40°F-140°F), humidity (10%-99%), and the accuracy can be ±1°C/±5%. Automatic data update every 60 seconds (approx. 30 minutes for the sensor to stabilize). 【Easy to use】: With the button on the top, you can easily switch the temperature units to Celsius or Fahrenheit. Please note that the